PreviewPointCloud - ComfyUI Built-in Node Documentation

The Preview Point Cloud node lets you view a 3D point cloud file in the ComfyUI interface without saving it to the ComfyUI output directory. It saves the point cloud to a temporary location and displays it in a 3D preview window, while also passing the model data, model information, camera information, and preview dimensions through for further processing.

Inputs

Parameter	Description	Data Type	Required	Range
`model_3d`	Point cloud file (.ply)	FILE3D	Yes	-
`model_3d_info`	Information about the 3D model	LOAD3DMODELINFO	No	-
`viewport_state`	The current state of the 3D viewport	LOAD3D	Yes	-
`camera_info`	Camera information for the 3D view	LOAD3DCAMERA	No	-
`width`	Width of the preview window (default: 1024)	INT	Yes	1 to 4096
`height`	Height of the preview window (default: 1024)	INT	Yes	1 to 4096

Note: model_3d_info and camera_info are optional advanced inputs. When they are not connected, the node falls back to the corresponding values stored in viewport_state. The point cloud file is written to ComfyUI’s temporary directory rather than the output directory. This is an output (terminal) node, so it is primarily used to display the preview in the interface.

Outputs

Output Name	Description	Data Type
`model_3d`	The point cloud model data	FILE3D
`model_3d_info`	Information about the 3D model	LOAD3DMODELINFO
`camera_info`	Camera information for the 3D view	LOAD3DCAMERA
`width`	Width of the preview window	INT
`height`	Height of the preview window	INT

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​Inputs

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Inputs

Outputs